Garmin Apollo SL40 Installation Manual - page 23
Specifications
Apollo SL40 Installation Manual
17
Microphone input ..................................... Two inputs, standard carbon or dynamic mic with
integrated preamp providing minimum 70mv rms
into 1000
: load
Modulation capability............................... 85% with 100mv to 1000mv rms microphone input
at 1000 Hz
Audio frequency distortion ....................... < 10% at 85% modulation at 350 to 2500 Hz
Audio frequency response ........................ < 4db variation with 350 to 2500 Hz, 85%
modulation
Carrier noise level..................................... > 35 dB down
Sidetone output ......................................... up to 280mW into 100
:, 120mW into 500:
Duty cycle ................................................. 100%
Stuck mic time-out.................................... 35 second time-out, reverts to receive
I
NTERCOM
P
ERFORMANCE
Microphone input ..................................... Two inputs, standard carbon or dynamic mic with
integrated preamp providing minimum 70mv rms
into 1000
: load
Headphone audio output level .................. 280 mW into 100
:, 120 mW into 500:
AGC characteristic.................................... output varies < 3 dB with input of 100mv rms to
1000mv rms
C
ONTROL
I
NPUTS
Transmit key ............................................. Input pulled low to ground to enable the transmitter
Intercom select.......................................... Input pulled low to ground to enable the intercom
function
A
NTENNA
R
EQUIREMENTS
The Apollo SL40 requires an antenna meeting the following specifications.
Standard 50
: vertically polarized antenna with a VSWR < 2.5:1.
S
ERIAL
I
NTERFACE
RS-232 ...................................................... Defined in Appendix E - Serial Interface
Specifications